[clang] [CMake] Change GCC_INSTALL_PREFIX from warning to fatal error (PR #85891)
Harmen Stoppels via cfe-commits
cfe-commits at lists.llvm.org
Tue Apr 23 23:57:13 PDT 2024
haampie wrote:
Users of `GCC_INSTALL_PREFIX` typically have GCC installed in a unique, non-standard prefix, where clang's default search just worked.
Now those users have to generate config files for post-install, AND figure out how to make clang behave correctly when building runtimes. That's not ideal.
@MaskRay can you please make the error message more informative? It should probably say that users additionally have to set `RUNTIMES_CMAKE_ARGS=...` as well as generating `clang.cfg`, `clang++.cfg` config files. (And what about `flang.cfg` and/or `flang-new.cfg`?)
More clarity please :)
https://github.com/llvm/llvm-project/pull/85891
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